Circuit Design projects — HireLancer archive

ID / Date Listing

Battery-Powered Wireless PCB Design

I need a straightforward yet reliable custom PCB that handles wireless communication while running from a battery in the 5 V – 12 V range. The goal is to move q...

HL-39931318

Install Industrial Control Systems

I’m looking for an electrical workshop technician who can take full responsibility for installing industrial-grade control systems at our plant. The scope centr...

HL-39930074

Drone Integrated Circuit Board Design

We’re seeking a PCB design engineer to design an integrated board combining the Flight Controller, ESC, and Microprocessor (Raspberry Pi) into one compact syste...

HL-39929701

Multi-Speed Handheld Massager Retrofit

I have a battery-powered, two-head oscillating handheld massager that currently runs only at its fixed factory speeds. I want to open it up and give it a full u...

HL-39928883

Improve Existing Circuit Design

I have a functional ESP32 setup that uses a 4×4 conductive matrix (rows × columns) designed to detect cuts. Each intersection represents a “cell” in the network...

HL-39928579

3-Bit Counter on Zynq

I’m looking for a clean Verilog design that realises a 3-bit synchronous counter, counts in ordinary binary from 0 through 7, and drives a single seven-segment...

HL-39928002

Schematic & PCB Design for MSP430-based Embedded Device

Description: We are looking for an experienced PCB designer to create a compact PCB and schematic for a custom embedded system based on the MSP430 microcontroll...

HL-39928029

Perbaikan Lampu Rumah Bermasalah

Saya membutuhkan bantuan ahli listrik untuk memperbaiki kerusakan pada sistem lampu/pencahayaan di rumah. Masalah terjadi di titik lampu—lampu tidak menyala ata...

HL-39927676

Industrial Bandsaw Control Rewire

I need the control panel of my industrial bandsaw professionally rewired so the machine passes its upcoming regulatory inspection. The sole objective is full co...

HL-39926916

Circuit Simulation in MATLAB & PLECS

I’m looking for a hands-on electronics specialist who can build a detailed circuit simulation and modelling package using both MATLAB/Simulink and PLECS. The fo...

HL-39926783

App-Controlled Waterproof LED Light Strip

I'm looking for a skilled developer to create a battery-powered, app-controlled, waterproof LED RWGB light strip for outdoor lighting. Requirements: - Waterproo...

HL-39926370

Liquid Filler PLC Rewiring

I need the whole system rewired around a modern PLC/timer so the process timing is rock-solid and adjustable from a panel. Scope Filling Machine • Remove the ex...

HL-39925481

PSK RF Jammer Circuit

I’m putting together a small research project that calls for an RF jammer able to suppress PSK signals in the 0-500 Hz range. I’m looking for an intermediate-le...

HL-39925475

Kitchen Appliance Wiring Guide

I’m building a custom kitchen appliance and need clear, DIY-friendly wiring documentation so I can assemble everything safely at home. The device already has it...

HL-39924444

8kW PWM İndüksiyon PCB Tasarımı

Tek bir baskı devre kartı üzerinde 4 kW + 4 kW toplam 8 kW gücünde, 80-120 kHz aralığında çalışacak PWM kontrollü bir indüksiyon ısıtma devresi tasarımına ve ça...

HL-39923925

Microcontroller PCB for Dartboard LEDs

I'm wanting to convert a traditional dart board into one whereby the 20 numbers (1 to 20 around the perimeter of the board) are LEDs that can move at random eve...

HL-39923225

Sentaurus Forksheet FET Design

I need a Synopsys Sentaurus TCAD specialist to build a basic yet credible forksheet FET model that I can use for ongoing research. The target device must demons...

HL-39922620

Industrial Control System Design

I need a seasoned electronics engineer who can take a control-system concept for industrial automation from idea to tested prototype. The work spans schematic c...

HL-39922120

Complete School Electrical Plan Design

I need a full-building electrical layout for a new school that covers every area—from classrooms and administrative offices to sports and common facilities. The...

HL-39921431

Smart Proximity-Based TV Interaction Device

Project Summary (for Engineer Evaluation) I’m looking for an engineer who can design and prototype a small smart electronic device that connects to a TV and int...

HL-39921019

Diseño Gerber MCPCB LED

Necesito que conviertas mi idea en un archivo Gerber listo para enviar a fabricación. Ya tengo definido todo el BOM con LEDs SMD y los conectores de alimentació...

HL-39919874

Custom Touch Light Chandelier Project - Electrical System Design -- 2

Im looking for a qualified electrical engineer to create a complete electrical system design from the ground up for a chandelier that I am designing with my pro...

HL-39918931

Arduino PIR Dimmer Upgrade

I have a basic sketch that switches a light on for five seconds whenever my PIR sensor spots movement. It works, but I now want smoother control over the lamp’s...

HL-39918888

Wedding Ring Proximity Effect FOR ROBLOX

I need a system that activates a visual and auditory effect when two wedding rings come close together. This effect is intended for the wearers of the rings, en...

HL-39917625

Development of a simulator (biomedical equipment)

I am seeking a skilled freelance electronic engineer to develop a bench-tested, functional prototype of a simulator type biomedical device. This is a low-cost,...

HL-39916396

Tinkercad Parking garage Counter with LED's using digital Logic

I need a straightforward digital-logic parking counter built and shared in Tinkercad. The circuit must sit on a virtual breadboard—no programmed microcontroller...

HL-39916011

F7 Flight Controller PCB Design

I’m building a custom flight controller around an STM32 F7 and need a complete PCB design ready for fabrication. The board must seamlessly integrate: • GPS modu...

HL-39915814

Route 2-Layer KiCad PCB

The KiCad schematic is already complete and the parts are approximately placed on a medium-sized board. What I need now is a clean, production-ready layout on j...

HL-39914010

AutoCAD Lighting & Socket Layout

I have a residential project—a full three-bedroom bungalow—and I need clear, construction-ready set-out drawings that show every lighting point, switch, socket,...

HL-39913888

EMP Energy Capture Engineering

I'm seeking an RF/Pulsed Power Engineer to assist with an advanced energy capture project. The primary objective is to enhance our EMP energy capture techniques...

HL-39913918

Ultrasonic-Triggered Relay Setup

I already have the hardware—an Elegoo UNO R3, an RCWL-1655 weather-proof ultrasonic module (HC-SR041 form factor), and a HiLetgo relay board. I need a lean, no-...

HL-39913692

Cost-Optimized Integrated PCB Redesign

I already have the circuit working on a hand-wired board that combines an Arduino Nano, ULN2003-driven 28BYJ-48 stepper, RTC, I²C OLED, and two rotary encoders...

HL-39913430

Design 150W Sine Inverter

I need a compact, 150 W Pure-sine-wave 400 Hz inverter purpose-built for an industrial environment. It will run from a 24 V DC battery rail and must deliver a c...

HL-39913437

IoT-Integrated Smart Planter Design

Project Title: Smart Plant Pot (IoT-based automatic watering system) Description: I want to design and build a smart plant pot that can automatically monitor an...

HL-39913220

Custom WT32-ETH01 Expansion PCB

I’m building a home-automation device around the WT32-ETH01 module and need a new PCB that folds several extras into a single, compact board. Core requirements...

HL-39912732

ESP32 Vibration-Meter PCB Design

I’m moving my ADXL1005 breadboard setup to a production-ready board. The goal is a compact, low-noise PCB that feeds the accelerometer’s analog signal through p...

HL-39912570

Pi Zero Power PCB Finalization

I already have a two-board stacked layout for a Raspberry Pi Zero 2 W power-supply add-on drawn in KiCad 9. The footprints, outline, and general placement are f...

HL-39911984

5.8 GHz Reflection Phase Shifter

I’m looking for a complete design of a reflection-type phase shifter that will operate in the 5.8 GHz ISM band and support beam steering. The solution must achi...

HL-39911623

Residential Electrical Design & KVM Calculation

I’m planning a new residential installation and need a complete, code-compliant electrical design packaged in an easy-to-follow set of drawings and calculations...

HL-39911601

Mixed-Use Electrical Design

I need a complete electrical design package for a six-story mixed-use building. The scope covers every part of the structure—residential units, commercial space...